The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2005
Filed:
Aug. 14, 2002
Applicants:
Ioan Sasu, Brossard, CA;
Bertrand Turcotte, Ste-Julie, CA;
Inventors:
Ioan Sasu, Brossard, CA;
Bertrand Turcotte, Ste-Julie, CA;
Assignee:
Pratt & Whitney Canada Corp., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23C003/18 ;
U.S. Cl.
CPC ...
Abstract
Airfoil blades are machined in a workpiece using a circular machining tool defining a machining ring having inner and outer circumferential surfaces. The airfoil blades are created by generating engagement movements between the rotating circular machining tool and the workpiece so as to define a concave side of an airfoil with the outer circumferential cutting surface of the machining ring and a convex side of an adjacent airfoil with the inner circumferential cutting surface of the machining ring.